if (!RedactorPlugins) var RedactorPlugins = {};

RedactorPlugins.table = function()
{
	return {
		getTemplate: function()
		{
			return String()
			+ '<section id="redactor-modal-table-insert">'
				+ '<label>' + this.lang.get('rows') + '</label>'
				+ '<input type="text" size="5" value="2" id="redactor-table-rows" />'
				+ '<label>' + this.lang.get('columns') + '</label>'
				+ '<input type="text" size="5" value="3" id="redactor-table-columns" />'
			+ '</section>';
		},
		init: function()
		{

			var dropdown = {};

			dropdown.insert_table = { title: this.lang.get('insert_table'), func: this.table.show };
			dropdown.insert_row_above = { title: this.lang.get('insert_row_above'), func: this.table.addRowAbove };
			dropdown.insert_row_below = { title: this.lang.get('insert_row_below'), func: this.table.addRowBelow };
			dropdown.insert_column_left = { title: this.lang.get('insert_column_left'), func: this.table.addColumnLeft };
			dropdown.insert_column_right = { title: this.lang.get('insert_column_right'), func: this.table.addColumnRight };
			dropdown.add_head = { title: this.lang.get('add_head'), func: this.table.addHead };
			dropdown.delete_head = { title: this.lang.get('delete_head'), func: this.table.deleteHead };
			dropdown.delete_column = { title: this.lang.get('delete_column'), func: this.table.deleteColumn };
			dropdown.delete_row = { title: this.lang.get('delete_row'), func: this.table.deleteRow };
			dropdown.delete_table = { title: this.lang.get('delete_table'), func: this.table.deleteTable };

			this.observe.addButton('td', 'table');
			this.observe.addButton('th', 'table');

			var button = this.button.addBefore('link', 'table', this.lang.get('table'));
			this.button.addDropdown(button, dropdown);
		},
		show: function()
		{
			this.modal.addTemplate('table', this.table.getTemplate());

			this.modal.load('table', this.lang.get('insert_table'), 300);
			this.modal.createCancelButton();

			var button = this.modal.createActionButton(this.lang.get('insert'));
			button.on('click', this.table.insert);

			this.selection.save();
			this.modal.show();

			$('#redactor-table-rows').focus();

		},
		insert: function()
		{

			var rows = $('#redactor-table-rows').val(),
				columns = $('#redactor-table-columns').val(),
				$tableBox = $('<div>'),
				tableId = Math.floor(Math.random() * 99999),
				$table = $('<table id="table' + tableId + '"><tbody></tbody></table>'),
				i, $row, z, $column;

			for (i = 0; i < rows; i++)
			{
				$row = $('<tr>');

				for (z = 0; z < columns; z++)
				{
					$column = $('<td>' + this.opts.invisibleSpace + '</td>');

					// set the focus to the first td
					if (i === 0 && z === 0)
					{
						$column.append(this.selection.getMarker());
					}

					$($row).append($column);
				}

				$table.append($row);
			}

			$tableBox.append($table);
			var html = $tableBox.html();


			this.modal.close();
			this.selection.restore();

			if (this.table.getTable()) return;

			this.buffer.set();

			var current = this.selection.getBlock() || this.selection.getCurrent();
			if (current && current.tagName != 'BODY')
			{
				if (current.tagName == 'LI') current = $(current).closest('ul, ol');
				$(current).after(html);
			}
			else
			{
				this.insert.html(html);
			}

			this.selection.restore();

			var table = this.$editor.find('#table' + tableId);

			if (!this.opts.linebreaks && (this.utils.browser('mozilla') || this.utils.browser('msie')))
			{
				var $next = table.next();
				if ($next.length === 0)
				{
					 table.after(this.opts.emptyHtml);
				}
			}

			this.observe.buttons();

			table.find('span.redactor-selection-marker').remove();
			table.removeAttr('id');

			this.code.sync();
			this.core.setCallback('insertedTable', table);
		},
		getTable: function()
		{
			var $table = $(this.selection.getParent()).closest('table');

			if (!this.utils.isRedactorParent($table)) return false;
			if ($table.size() === 0) return false;

			return $table;
		},
		restoreAfterDelete: function($table)
		{
			this.selection.restore();
			$table.find('span.redactor-selection-marker').remove();
			this.code.sync();
		},
		deleteTable: function()
		{
			var $table = this.table.getTable();
			if (!$table) return;

			this.buffer.set();


			var $next = $table.next();
			if (!this.opts.linebreaks && $next.length !== 0)
			{
				this.caret.setStart($next);
			}
			else
			{
				this.caret.setAfter($table);
			}


			$table.remove();

			this.code.sync();
		},
		deleteRow: function()
		{
			var $table = this.table.getTable();
			if (!$table) return;

			var $current = $(this.selection.getCurrent());

			this.buffer.set();

			var $current_tr = $current.closest('tr');
			var $focus_tr = $current_tr.prev().length ? $current_tr.prev() : $current_tr.next();
			if ($focus_tr.length)
			{
				var $focus_td = $focus_tr.children('td, th').first();
				if ($focus_td.length) $focus_td.prepend(this.selection.getMarker());
			}

			$current_tr.remove();
			this.table.restoreAfterDelete($table);
		},
		deleteColumn: function()
		{
			var $table = this.table.getTable();
			if (!$table) return;

			this.buffer.set();

			var $current = $(this.selection.getCurrent());
			var $current_td = $current.closest('td, th');
			var index = $current_td[0].cellIndex;

			$table.find('tr').each($.proxy(function(i, elem)
			{
				var $elem = $(elem);
				var focusIndex = index - 1 < 0 ? index + 1 : index - 1;
				if (i === 0) $elem.find('td, th').eq(focusIndex).prepend(this.selection.getMarker());

				$elem.find('td, th').eq(index).remove();

			}, this));

			this.table.restoreAfterDelete($table);
		},
		addHead: function()
		{
			var $table = this.table.getTable();
			if (!$table) return;

			this.buffer.set();

			if ($table.find('thead').size() !== 0)
			{
				this.table.deleteHead();
				return;
			}

			var tr = $table.find('tr').first().clone();
			tr.find('td').html(this.opts.invisibleSpace);
			$thead = $('<thead></thead>').append(tr);
			$table.prepend($thead);

			this.code.sync();

		},
		deleteHead: function()
		{
			var $table = this.table.getTable();
			if (!$table) return;

			var $thead = $table.find('thead');
			if ($thead.size() === 0) return;

			this.buffer.set();

			$thead.remove();
			this.code.sync();
		},
		addRowAbove: function()
		{
			this.table.addRow('before');
		},
		addRowBelow: function()
		{
			this.table.addRow('after');
		},
		addColumnLeft: function()
		{
			this.table.addColumn('before');
		},
		addColumnRight: function()
		{
			this.table.addColumn('after');
		},
		addRow: function(type)
		{
			var $table = this.table.getTable();
			if (!$table) return;

			this.buffer.set();

			var $current = $(this.selection.getCurrent());
			var $current_tr = $current.closest('tr');
			var new_tr = $current_tr.clone();

			new_tr.find('th').replaceWith(function()
			{
				var $td = $('<td>');
				$td[0].attributes = this.attributes;

				return $td.append($(this).contents());
			});

			new_tr.find('td').html(this.opts.invisibleSpace);

			if (type == 'after')
			{
				$current_tr.after(new_tr);
			}
			else
			{
				$current_tr.before(new_tr);
			}

			this.code.sync();
		},
		addColumn: function (type)
		{
			var $table = this.table.getTable();
			if (!$table) return;

			var index = 0;
			var current = $(this.selection.getCurrent());

			this.buffer.set();

			var $current_tr = current.closest('tr');
			var $current_td = current.closest('td, th');

			$current_tr.find('td, th').each($.proxy(function(i, elem)
			{
				if ($(elem)[0] === $current_td[0]) index = i;

			}, this));

			$table.find('tr').each($.proxy(function(i, elem)
			{
				var $current = $(elem).find('td, th').eq(index);

				var td = $current.clone();
				td.html(this.opts.invisibleSpace);

				if (type == 'after')
				{
					$current.after(td);
				}
				else
				{
					$current.before(td);
				}

			}, this));

			this.code.sync();
		}
	};
};